Where is the background of the Unity (3D) launcher located? I would like to enhance the transparency of the launcher to make it fit better with light themes (such as Radiance). The actual transparency of the launcher suits only with darker themes (like Ambiance).

The file "launcher_background_middle.png" in /usr/share/unity/themes doesn't seem to affect the launcher transparency, and I haven't yet found out where the launcher background is. It should be a picture that can be edited with Gimp.

There have been variations of this question here before. As of now, it can't be done. Nobody has figured it out, at least. There are a bunch if us looking, so post here if you get it sorted out.
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user18753May 27 '11 at 22:49

It's worth mentioning that the CompizConfig Settings Manager isn't installed by default, so that will need to be installed before this will work.
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michaelmsMay 27 '11 at 18:10

I was not talking about the opacity of the top panel. My question regards the opacity of the launcher (the bar on the left where there are the icons of the programmes). I thought the title was clear.
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MattiaMay 27 '11 at 19:39

CCSM allows you to edit the launcher opacity as well now, at least with currently upgraded packages in ubuntu 11.10.
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tamaleNov 22 '11 at 16:25